In 2026, the global energy storage industry embraces a pivotal iteration of technological routes. With the continuous growth of new energy penetration, the large-scale implementation of utility-scale energy storage projects, coupled with the explosive high-density power demand of AI data centers, the inherent shortcomings of traditional energy storage architectures have become increasingly prominent. Against this backdrop, liquid-cooled energy storage has shed its niche high-end label and rapidly evolved into a mainstream industry solution, emerging as the core technological direction for the current round of energy storage industrial upgrading.

The energy storage industry has bid farewell to extensive scale expansion and shifted to a high-quality development model featuring safety, high efficiency, long service life and high energy density. System safety, thermal management capability, cycle efficiency, equipment lifespan and operational stability under high-density conditions have become core evaluation indicators. Liquid cooling technology serves as a critical solution to the industry’s key pain points and perfectly adapts to the demands of emerging application scenarios.

Since 2026, leading energy storage enterprises such as Sungrow Power have regarded full liquid-cooled energy storage systems as the core R&D and deployment focus for their new-generation products. The industry trend is clear: in the utility-scale energy storage sector, liquid cooling will fully replace traditional air cooling and become the standardized mainstream solution for energy storage thermal management. This transformation is fundamentally driven by the comprehensive upgrade of energy storage application scenarios.

In the past, energy storage was mostly applied to medium and light-duty scenarios such as new energy power matching and peak shaving and valley filling for industrial and commercial users, with relatively small single-system capacity. The low-cost and easily deployable air cooling solution was sufficient to meet basic needs. However, with the rapid expansion of global utility-scale energy storage projects, the industry has advanced from the 5MWh level to the 10MWh+ large-capacity era. The substantial increase in energy density has made thermal management a core bottleneck restricting system safety, operational efficiency and equipment service life.

Traditional air cooling relies on air convection for heat dissipation, which is highly constrained by ambient temperature and ventilation conditions. It suffers from inherent drawbacks including low temperature control accuracy, prominent local hotspots, poor cell consistency, weak stability under high temperatures and high auxiliary energy consumption. In new energy storage scenarios characterized by large capacity, high density and high load, the limitations of air cooling are further magnified, making it difficult to meet project operational requirements. This issue is especially acute in high-temperature regions such as the Middle East, Southeast Asia and Africa, where temperatures remain above 40°C year-round, leaving air-cooled energy storage with severe heat dissipation pressure, prominent safety hazards and high operational losses.

Meanwhile, high-end scenarios including AI data centers and supercomputing centers impose stringent requirements on energy storage systems: high power density, round-the-clock high-load operation, rapid response, frequent cycling and low failure rates. This further drives industrial technological upgrading and accelerates the commercial adoption of liquid-cooled energy storage.

Liquid-cooled energy storage achieves efficient heat exchange through closed coolant circulation, delivering far superior heat dissipation efficiency and temperature control accuracy compared with air cooling. Industry data shows that liquid cooling can control the system temperature difference within 3°C, while that of air cooling systems generally ranges from 8°C to 15°C. A smaller temperature difference effectively improves battery cell consistency, extends cycle life, reduces thermal runaway risks and ensures stable system operation — the core advantages that make liquid cooling the standard configuration for utility-scale energy storage.

Industry analysts point out that against the trend of larger-scale and higher-density energy storage, thermal management is not only related to system safety but also directly determines project yield, operational stability and investment payback period. As the energy storage industry enters an era of low-price and slim-profit competition, the value of comprehensive system efficiency has become increasingly prominent. In the 7GWh energy storage cell bidding organized by China Energy Engineering Corporation in May 2026, mainstream 314Ah and 500Ah cells were quoted at a record low of USD 47 per kWh. This marks the official end of the high-profit expansion era for the energy storage industry and the arrival of a refined development stage that pursues returns through efficiency and creates value via technology.

Future industrial competition will no longer focus merely on battery cell price rivalry, but shift to an all-round competition covering system efficiency, refined thermal management, full life cycle management and intelligent operation. Liquid cooling technology has become a core tool for leading enterprises to build technological barriers and widen the industry gap.

The popularization of liquid cooling technology has also accelerated the differentiation of the industrial competition landscape. Compared with air cooling, liquid cooling imposes higher requirements on structural design, fluid control, system integration and professional operation and maintenance capabilities, significantly raising the industry’s technical threshold and putting immense competitive pressure on small and medium-sized enterprises.

The industry’s competition logic has fundamentally transformed from homogeneous price wars to comprehensive strength competition centered on systematization, technological innovation and refined operation. Industry insiders predict that the energy storage industry will enter a period of in-depth consolidation in the next two to three years. Small and medium-sized manufacturers lacking core technologies, system integration capabilities and large-scale project delivery capacity will gradually be phased out. In contrast, leading enterprises that master core liquid cooling technologies and possess global supply chain resources and large project experience will continue to expand market share and consolidate their leading positions.